shawfactor

Quickly increase your readers’ engagement by adding related posts to the bottom of your post content.
Posts with the most terms in common will display at the top!
This plugin is capable of finding related posts in multiple taxonomies and post types. Include or exclude terms from the search for related posts. Change the look and feel by using your own templates in your (child) theme.
Additionally this plugin allows you to override the related posts that are automatically generated and choose your own related posts.
Requires wp_body_open
Note this plugin requires wordpress 5.2 and for your theme to support the wp_body_open hook (most good themes do).
Like this plugin? Please consider <a href="https://wordpress.org/support/view/plugin-reviews/lh-related-posts-by-taxonomy/" rel="ugc">leaving a 5-star review</a>.
Love this plugin or want to help the LocalHero Project? Please consider <a href="https://lhero.org/portfolio/lh-related-posts-by-taxonomy/" rel="nofollow ugc">making a donation</a>.
Plugin features:
<ul>
<li>Small Footprint. Unlike many other related post plugins this will have a minimal impact on site speed!</li>
<li>Highly Adjustable layout!</li>
<li>The ability to optionally manually set the related posts for each post in the post edit screen.</li>
</ul>

LH Related Posts by Taxonomy

A lightweight decisions not options related posts plugin.

Konrad Chmielewski

Welcome to WP 404 Auto Redirect to Similar Post!
This plugin automatically redirect 404 pages to similar posts based on Title, Post Types & Taxonomies. If nothing similar is found, visitors will be redirected to the homepage or a custom URL.
<h4>Features:</h4>
<ul>
<li>Automatically detect any 404.</li>
<li>Automatically search a similar post based on multiple factors:
<ul>
<li>Title</li>
<li>Potential Post Type</li>
<li>Potential Taxonomy</li>
</ul>
</li>
<li>If nothing similar is found, set your Fallback Behavior:
<ul>
<li>Redirect to homepage</li>
<li>Redirect to a custom URL</li>
<li>Display the default 404 page</li>
</ul>
</li>
<li>Choose the redirection HTTP header status:
<ul>
<li>301 headers</li>
<li>302 headers</li>
</ul>
</li>
<li>Exclude Post Types from possible redirections.</li>
<li>Exclude Taxonomies from possible redirections.</li>
<li>Exclude Posts based on a custom post meta.</li>
<li>Exclude Terms based on a custom term meta.</li>
<li>Display the Debug Console instead of being redirected (Admin).</li>
<li>Preview possible redirection from the administration panel.</li>
</ul>
<h4>*New* Features:</h4>
<ul>
<li>Expose ‘WP-404-Auto-Redirect’ headers on 404 pages. (Admin).</li>
<li>Log redirections in the /wp-content/debug.log file.</li>
<li>Create your own search engines logic.</li>
<li>Create your own search engines groups & fire sequence.</li>
</ul>
<h4>*New* Engines & Groups:</h4>
WP 404 Auto Redirect to Similar Post 1.0 introduces the concept of engines and groups which let you customize your own searching & matching logic. The plugin comes with 5 engines and 1 default group out of the box!
Default Group Engines:
<ol>
<li>
Fix URL 
Find and fix common URL mistakes.
</li>
<li>
Direct Match 
Search for a Post that perfectly match keywords.
</li>
<li>
Search Post 
Search for a similar Post.
</li>
<li>
Search Term 
Search for a similar Term.
</li>
<li>
Search Post: Fallback 
If a Post Type is set in the WP Query, redirect to the Post Type Archive.
</li>
</ol>
<h4>But Also:</h4>
<ul>
<li>Easy to Install / Uninstall.</li>
<li>No useless data saved in Database.</li>
<li>Blazing Fast Performance.</li>
</ul>
<h4>Compatibility:</h4>
WP 404 Auto Redirect to Similar Post is 100% compatible with all popular manual redirection plugins:
<ul>
<li><a href="https://wordpress.org/plugins/redirection/" rel="ugc">Redirection</a></li>
<li><a href="https://wordpress.org/plugins/simple-301-redirects/" rel="ugc">Simple 301 Redirects</a></li>
<li><a href="https://wordpress.org/plugins/seo-by-rank-math/" rel="ugc">RankMath Redirections</a></li>
<li><a href="https://yoast.com/wordpress/plugins/seo/redirects-manager/" rel="nofollow ugc">Yoast Redirections</a></li>
<li>etc…</li>
</ul>
If you use one of them, but missed a manual redirection and a 404 is about to be displayed, WP 404 Auto Redirect to Similar Post will cover you.
<h3>Reviews</h3>
They talk about us! 🙂
<ul>
<li><a href="https://sebastienpierrepack.com/plugins-corriger-404-wordpress/" rel="nofollow ugc">Quels plugins utiliser pour corriger les erreurs 404 sous WordPress ?</a></li>
<li><a href="https://www.formget.com/404-redirect-wordpress-plugins/" rel="nofollow ugc">6+ 404 Redirect WordPress Plugins 2018 (Free and Paid)</a></li>
<li><a href="https://uproer.com/articles/best-seo-plugins-wordpress/" rel="nofollow ugc">12 Best Free SEO Plugins for WordPress</a></li>
<li><a href="https://wpstuff.org/plugins/recommended-plugins-for-wordpress/" rel="nofollow ugc">Recommended Plugins for WordPress</a></li>
<li><a href="http://blogingenuity.com/top-wordpress-plugins-i-cant-do-without/" rel="nofollow ugc">Top WordPress Plugins I Can’t Do Without</a></li>
<li><a href="http://bhaaratham.com/permalink-finder-plugin-sanitize_url-is-deprecated/" rel="nofollow ugc">Permalink Finder Plugin is deprecated</a></li>
<li><a href="https://www.seosatu.com/optimalkan-seo-dengan-halaman-404/" rel="nofollow ugc">Membuat halaman Error 404 menjadi SEO friendly</a></li>
<li><a href="https://www.littlemissgemtravels.com/ultimate-guide-to-starting-a-travel-blog/" rel="nofollow ugc">The Ultimate Guide to Starting a Travel Blog</a></li>
<li><a href="https://sayoho.com/80-best-wordpress-plugins-for-2018/" rel="nofollow ugc">80 Best WordPress Plugins for 2018</a></li>
</ul>

WP 404 Auto Redirect to Similar Post

This is, THE MOST "must have" plugin I've ever found.

a must plugin

Automatically Redirect any 404 page to a Similar Post based on the Title Post Type & Taxonomy using 301 or 302 Redirects!

LH Related Posts by Taxonomy vs WP 404 Auto Redirect to Similar Post